package cn.tedu.order.service;

import cn.tedu.order.entity.Order;
import cn.tedu.order.feign.AccountClient;
import cn.tedu.order.feign.EasyIdClient;
import cn.tedu.order.feign.StorageClient;
import cn.tedu.order.mapper.OrderMapper;
import io.seata.spring.annotation.GlobalTransactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;


@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private EasyIdClient easyIdClient;

    @Autowired
    private StorageClient storageClient;

    @Autowired
    private AccountClient accountClient;

    @Override
    @GlobalTransactional //开启全局事务
    @Transactional //控制本地事务
    public void create(Order order) {

        /*从全局唯一id发号器获取id*/
        String id = easyIdClient.nextId("order_business");
        Long orderId = Long.valueOf(id);
        order.setId(orderId);
        orderMapper.create(order);

        /*调用storage修改库存*/
        storageClient.decrease(order.getProductId(), order.getCount());

        /*调用account修改账户余额*/
        accountClient.decrease(order.getUserId(), order.getMoney());
    }
}
